Since beginning of 2014 a new engine family extends the Hatz product portfolio: The H-series. Starting with the 4H50TIC water-cooled 4-cylinder model, Hatz is relying on common-rail technology and turbocharger with the new generation. Hatz followed a groundbreaking downsizing approach, making the engine the most compact and lightweight in its class. The H series does not require a diesel particulate filter ( DPF) in order to fulfill the stringent emissions regulation Stage III B in the EU and EPA Tier 4 final in the US. The technical development of the 4H50TIC is supported by the Federal Ministry of Economics and Technology based on a decision of the German Bundestag.